@thi.ng/dsp/convert.js

Composable signal generators, oscillators, filters, FFT, spectrum, windowing & related DSP utils

import { TAU } from "@thi.ng/math/api";
const normFreq = (f, fs) => f / fs;
const freqRad = (f, fs) => f / fs * TAU;
const freqMs = (f) => 1e3 / f;
const radFreq = (rad, fs) => rad / TAU * fs;
const msFrames = (t, fs) => t * 1e-3 * fs;
const framesMs = (frames, fs) => frames / fs * 1e3;
const magDb = (x) => 20 * Math.log(x) / Math.LN10;
const dbMag = (x) => 10 ** (x / 20);
export {
  dbMag,
  framesMs,
  freqMs,
  freqRad,
  magDb,
  msFrames,
  normFreq,
  radFreq
};